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The main function of a valve actuator is to control the valves ON to Close or modulating the valve,and the motor operated valve actuator is one important kind of valve actuator,the main different between kind valve actuators is it drive by electric power.
it functions generally as servo valve and differs only in the feedback process in plc system.
there are two conditions to use motor operated valve
1.where there is higher pressure when compared to suction pressure.
2.if effort applied is more than the hand effort..
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What are the advantages of motor operated valves over pneumatic valves?
Good question Usually motor operated valve used in big pipe lines sizes which it is need strong torque and for ON/OFF condition not to control the process, We can use rather than M.O.V pneumatic ON/OFF valve with piston actuator (Double Acting) but in this case the accessories it will cost you more because you need to provide pneumatic amplifier and big actuator depend on the pipe size. That is why better to use M.O.V the motor will rotate the gears and the gears will rotate the valve with low cost. Contact me for more clarification if there is.
A Pneumatic solenoid operated directional control valve?
dfrere
What are variable valve actuators?
Dear Sir,does it mean "modulating duty",it means can control the valve by a singal. for more informaion,can refer to http://www.valve-actuator.org/Multi-turn-Valve-Actuator/118.html
What could happen if a semi hermetic compressor is operated with the suction service valve backseated and the discharge valve frontseated?
the compressor capacity will increase
What is the function of back pressure valve in Boiler feed pump?
The function of back pressure valve is to prevent back flow to the pump in case there is an obstruction on downstream side of valve.
How is working motorized operated valve?
motor is used as a actuator here. we can use globe,ball,butterfly type valves
What has the author K DeWall written?
K. DeWall has written: 'Motor-operated valve (MOV) actuator motor and gearbox testing' -- subject(s): Testing, Equipment and supplies, Piping, Nuclear industry, Nuclear power plants, Valves
What are the advantages of motor operated valves over pneumatic valves?
Good question Usually motor operated valve used in big pipe lines sizes which it is need strong torque and for ON/OFF condition not to control the process, We can use rather than M.O.V pneumatic ON/OFF valve with piston actuator (Double Acting) but in this case the accessories it will cost you more because you need to provide pneumatic amplifier and big actuator depend on the pipe size. That is why better to use M.O.V the motor will rotate the gears and the gears will rotate the valve with low cost. Contact me for more clarification if there is.
What is the function of pneumatic valves?
If you are talking about a pneumatic solenoid valve the function of it is to control the air in and out flow in a pneumatic actuator.
What is the definition of pneumatic valve?
A valve which requires pressurised air to operate (open or close) is known as pneumatic valve. A valve has a valve base through which the media (could be be air, liquid, steam, gas...) flows and a actuator mounted on the base which helps operate the valve. This actuator could be of pneumatic type. (or elctrically operated motorised type)
What difference between mov and zv valve?
A MOV (motor operated valve) is a type of valve that is controlled by an electric motor, while a ZV (zone valve) is a valve that controls the flow of water or steam in heating and cooling systems in residential and commercial buildings. The main difference is in their application and operation, with MOVs being used for larger industrial processes and ZVs used for HVAC systems in buildings.
Function of stepper idle speed actuator?
Stepper idle speed actuator in carbureted vehicles it is used to control the engine's idling RPM. It also regulates the position of the throttle valve plate.
What is a solenoid valve on a 97 Nissan Pathfiner?
A solenoid valve is a electromechanically operated valve that is controlled by an electric current. It essentially controls the cylinders and fluid power in the motor of your Nissan Pathfinder.
What is the importance of a valve actuator?
Valve actuator are important for installing certain pipes correctly. With out them you can be in for major pipe damage and thousands in repairs.
What is function of solenoid?
The function of solenoid can be quite diverse. This is a valve that is operated electromagnetically. One of the common functions is to help in opening and closing of a laser shatter.
What is the difference between a valve and actuator?
actuator is a mechanism that will responds to hydraulic,pneumatic and electrical signal ,it is used to control the valve that to be in open or close condition.
What is the differences of direct acting actuator and reverse acting actuator?
When a pressure signal is applied, the valve shaft moves in the direction opposite that of the direct-acting actuator, but it follows the same operating principle. In the reverse-acting actuator, the valve shaft is pulled into the actuator by the application of a pressure control signal.
